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                            <div style="color:gray; word-break: break-all; font-size:12px;">原英文版地址: <a href="https://www.elastic.co/guide/en/elasticsearch/reference/7.7/query-dsl-match-all-query.html" rel="nofollow" target="_blank">https://www.elastic.co/guide/en/elasticsearch/reference/7.7/query-dsl-match-all-query.html</a>, 原文档版权归 www.elastic.co 所有<br/>本地英文版地址: <a href="../en/query-dsl-match-all-query.html" rel="nofollow" target="_blank">../en/query-dsl-match-all-query.html</a></div>
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<strong>重要</strong>: 此版本不会发布额外的bug修复或文档更新。最新信息请参考 <a href="https://www.elastic.co/guide/en/elasticsearch/reference/current/index.html" rel="nofollow">当前版本文档</a>。
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<h2 class="title">
<a id="query-dsl-match-all-query"></a>匹配所有(match_all)查询
</h2>
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<p>
最简单的查询，匹配所有文档，且给所有的文档的 <code class="literal">_score</code> 都是 <code class="literal">1.0</code>。
</p>
<div class="pre_wrapper lang-console">
<pre class="programlisting prettyprint lang-console">GET /_search
{
    "query": {
        "match_all": {}
    }
}</pre>
</div>
<div class="console_widget" data-snippet="snippets/215.console"></div>
<p>可以使用 <code class="literal">boost</code> 参数更改<code class="literal">_score</code>：</p>
<div class="pre_wrapper lang-console">
<pre class="programlisting prettyprint lang-console">GET /_search
{
    "query": {
        "match_all": { "boost" : 1.2 }
    }
}</pre>
</div>
<div class="console_widget" data-snippet="snippets/216.console"></div>
<h2>
<a id="query-dsl-match-none-query"></a>不匹配查询 (Match None Query)
</h2>
<p>这与 <code class="literal">match_all</code>查询相反，它不匹配任何文档：</p>
<div class="pre_wrapper lang-console">
<pre class="programlisting prettyprint lang-console">GET /_search
{
    "query": {
        "match_none": {}
    }
}</pre>
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<div class="console_widget" data-snippet="snippets/217.console"></div>
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